2x Mullard ECC83 Valves

Date Code: 641 R0G3, 641 R0G3

Tested by AVO VCM Tester


Valve 1
Ia1 = 1.25(mA), gm1 = 1.7(mA/V)
Ia2 = 1.55(mA), gm2 = 1.9(mA/V)

Valve 2
Ia1 = 1.32(mA), gm1 = 1.75(mA/V)
Ia2 = 1.2(mA), gm2 = 1.7(mA/V)


NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V)


*** This valve has also been tested in amplifier without any noise. ***



Postage Costs
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20260424L003